Breech-loading breakdown gun.



PATENTED AUG. 16, 1904.

H. H. POX.

BREEGH LOADING BREAKDOWN GUN.

APPLIUATION FILED MAY 1, 1903 no MODEL.

NiTnD STATES Patented August 16, 1904.

PATENT OF ICE.

HARRY H. FOX, OF BALTIMORE, MARYLAND, ASSIGNOR, BY MESNE ASSIGNMENTS, TOPHILADELPHIA ARMS COMPANY, OF PHILA- DELPHIA, PENNSYLVANIA, ACORPORATION OF NEWV JERSEY.

BREECH-LOADING BREAKDOWN GUN.

SPECIFICATION forming part of Letters Patent No. 767,557, dated August16, 1904.

Application filed May 1, 1903. Serial No. 155,136. (No model.)

fication.

This invention relates to breech loading breakdown firearms of theso-called hammerless kind or that in which the hammer is concealed, andhas for its object to provide an improved mechanism for cocking thehammer operated by the breakingdown of the barrel.

In the present instance the invention is shown as applied to adouble-barrel gun; but it may also be used with a single barrel.

Referring to the accompanying drawings, in which similar figures ofreference indicate like parts, Figure 1 is a side view, in longitudinalsection, of a portion of the barrels and breech of a gun with the breechclosed and hammer down and showing the invention. Fig. 2 is a similarView with the barrels broken down and the hammers cocked. Fig. 3 is asimilar View with the barrels closed and the hammers cooked for firing.Fig. 4. is a perspective View of a hammer detached, showing its slottedconstruction at the pivotal point.

1 indicates the breech-piece or frame of the gun, to which are pivoted,by means of the hinge-pin 2, barrels 4, on which is mounted the fore-end3.

In describing this invention it will be understood that the operatingmechanism is duplicated to adapt it to a double-barreled gun.

The breech-piece or frame 1 iscut away to form the chamber 5, in whichare located the hammers 6, pivoted on the pin 7 and having thestriking-point 8, the hammers being operated in the usual way and thestriking-point 8 falling into and projecting through an aperture-hole 9in the wall of the chamber 5 to strike against the primer of thecartridge. Below each hammer 6 is located a hinged sear 10, having itsforward end normally beneath and resting against the heel of the hammer6, as shown in Fig. 1, and when the hammer is cooked dropping into andengaging the notch 11 in the rear of the heel to hold the hammer incocked position, as shown in Figs. 2 and 3.

In order to cook the hammers by the breaking down of the barrels, thefollowing mechanism is employed: Mounted upon the hingepin 2 is acam-roller l2, suitably connected with the fore-end 3 and, as hereshown, by means of a V-shaped notch 13 in the cam-roller, with whichengages a V- shaped projection 14 on the fore-end 3, whereby when thebarrels are broken down the roller 12 will be turned on the pin 2.Opening into the chamber 5 and extending forward to within a shortdistance of the roller 12 is a tubular passage-way 15, terminating atits forward end in a shoulder 16, and extending from the forward end ofthe passage-way 15 is a similar smaller tubular passage-way 17, openinginto the socket, in which is seated the roller 12. Located in the rearend of the passage-way 15 is a tubular nut or sleeve 18, secured inplace by screwthreads 19 or other suitable means, and extending throughthe sleeve 18 and the passageways 15 and 17 is a cooking slide-pin 20,having its forward .end normally in engagement with a recessedshouldered portion 21 of the roller 12. In the forward end of thepassageway 15 is located a nut 22, mounted on the cocking-pin 20 andscrew-threaded thereon, so as to be adjustable to regulate the tensionof a coiled spring 23, mounted on the pin 20 and located between thesleeve 18 and nut 22. The nut 22 serves to compress the spring 23 whenthe cocking-pin 20 is pushed back by the rotation of the roller 12 whenthe barrels are broken down.

Referring to Fig. 4c, the hammer 6 is shown as formed with a verticalslot 2 across which extends the pivot-pin 7 and also a pin 25, eecentricto the pin 7 The rear end of the cooking slide-pin 20 is formed with ahook 26, which projects into the slot 24: of the hammer 6 and looselystraddles or encircles the pin 25, permitting of a little play or lostmotion between the hammer and the cocking-pin.

The operation of the device is as follows: When the barrels are brokendown, the roller 12 is thereby rotated and pushes back the cocking-pin20, the nut 22 compressing the spring23. In the rearward movement of thepin 20 the latter through its hook 26 pushes back the hammer 6 until thesear 10 engages the notch 11 in the hammer and holds the latter incocked position. The barrels being closed, the gun is ready for firing.When the gun is discharged and the hammer returns to its normalposition, the nut 22 serves to limit the forward movement of the pin 20by coming in contact with the shoulder 16 of passageway 15, therebytaking the tension of the spring 23 off of the hammer as soon as the gunis fired and'allowing the striking end of the hammer to drop back out ofthe indentation in the primer,owing to the loose connection of the hook26 with the pin 25. The hammer-point is thus not only away from theprimer, but also by its position permits the rear end of the barrel toclear it when the barrel is broken down.

The invention is not limited to the exact construction or arrangement ofthe roller, cocking-pin, and connections with the hammer as herein setforth, as the parts could be so arranged that the roller would pull thecocking-pin instead of pushing it and the hammer be pulled back insteadof pushed back.

The invention covers the construction whether used with one or twobarrels, in the latter case the parts being merely duplicated.

Having thus described my invention, what I desire to secure and claim byLetters Patent 1. In a breech-loadingbreakdown gun,abarforth.

2. In a breech-loading breakdown gun, abarrel, and fore-end hinged tothe breech-piece, in combination with a roller mounted to rotate on thehinge-pin and rigidly connected to and rotated by the fore-end, andhaving a recessed shoulder, a sliding cocking-pin having its forward endnormally abutting against said shoulder and operated by said roller, andits rear end, formed with a hook, a retractingspring on said pin, and anut limiting the outward movement of the pin; and a hammer having a pinloosely engaged by the hook of the cocking-pin, said cocking-pin havinga limited movement independent of the ham mer, as and for the purposesetforth.

In testimonywhereof I have signed my name to this specification in thepresence oftwo subscribing witnesses.

HARRY H. FOX. Witnesses:

Hoornn T. KRAFT, J. A. SINCLAIR.

